Catalytic pyrolysis of black-liquor lignin by co-feeding with different plastics in a fluidized bed reactor. (September 2015)

• Record Type: Journal Article
• Authors: Zhang, Huiyan; Xiao, Rui; Nie, Jianlong; Jin, Baosheng; Shao, Shanshan; Xiao, Guomin
• Is Part Of: Bioresource technology. Volume 192(2015)
• Page Start: 68
• Page End: 74
• Publication Date: 2015-09
• Subjects: Biomass -- Black-liquor lignin -- Plastics -- Catalytic co-pyrolysis -- Fluidized bed; Biomass -- Periodicals; Biomass energy -- Periodicals; Bioremediation -- Periodicals; Agricultural wastes -- Periodicals; Factory and trade waste -- Periodicals; Organic wastes -- Periodicals; Bioénergie -- Périodiques; Déchets agricoles -- Périodiques; Déchets industriels -- Périodiques; Déchets organiques -- Périodiques; Déchets (Combustible) -- Périodiques; 662.88
• DOI: 10.1016/j.biortech.2015.05.040
• Languages: English
• ISSNs: 0960-8524

Abstract

Highlights: Catalytic co-pyrolysis (CCP) of lignin and plastics was conducted in a fluidized bed. CCP improves petrochemical yield and xylene selectivity. Petrochemical yield with respect of catalyst was LOSA-1 > spent FCC > γ-Al2 O3 > sand. Petrochemical yield of CCP (43.9%) with LOSA-1 is two times of that without catalyst. The better order of CCP feedstock was polystyrene > polyethylene > polypropylene. Abstract: Catalytic co-pyrolysis of black-liquor lignin and waste plastics (polyethylene, PE; polypropylene PP; polystyrene, PS) was conducted in a fluidized bed. The effects of temperature, plastic to lignin ratio, catalyst and plastic types on product distributions were studied. Both aromatic and olefin yields increased with increasing PE proportion. Petrochemical yield of co-pyrolysis of PE and lignin was LOSA-1 > spent FCC > Gamma-Al2 O3 > sand. The petrochemical yield with LOSA-1 is 43.9% which is more than two times of that without catalyst. The feedstock for co-pyrolysis with lignin is polystyrene > polyethylene > polypropylene. Catalytic co-pyrolysis of black-liquor lignin with PS produced the maximum aromatic yield (55.3%), while co-pyrolysis with PE produced the maximum olefin yield (13%).